Alienware M17x R4 Flashing Unlocked A11 BIOS to Replace Stock A13 BIOS

Hi Guys,

I have an Alienware M17x R4 with A13 BIOS. How can I flash the A11 Unlocked BIOS? Can someone give me a few steps? Also is it very risky downgrading the BIOS? The thing is when my mobo was replaced, it already had A13...

Any opions solutions @Robbo99999 @j95 @Mr. Fox?

Thanks,
Tom